The first resolved and detected classical nova shell in X-rays in comparison with the ROSAT detections of hard X-ray emission from classical nova in outburst


Balman S. , Ogelman H.

BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES, cilt.25, ss.363-368, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 25
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1016/s0273-1177(99)00759-0
  • Dergi Adı: BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES
  • Sayfa Sayıları: ss.363-368

Özet

We present the ROSAT High Resolution Imager (HRI) data of the first resolved and detected classical nova shell in the X-ray wavelengths : The shell of Nova Persei (1901). We find that the shell is composed of knots and has an elliptical shape. The surface brightness is about 703.4+/-54.5 counts arcmin(-2). We estimate that the spectrum is of thermal origin with a luminosity of 8.0x10(31) erg s(-1) and an X-ray temperature of similar to 2.0x10(6) K in the 0.1-2.4 keV energy range. The knots are most likely a result of fragmentation and condensation in the post-shock region. This detection sheds some light into one of the most poorly understood stages of classical nova evolution. (C) 2000 COSPAR. Published by Elsevier Science Ltd.